Book contents
- Maths, Physics and Clinical Measurement for Anaesthesia and Intensive Care
- Maths, Physics and Clinical Measurement for Anaesthesia and Intensive Care
- Copyright page
- Dedication
- Contents
- List of contributors
- Preface
- Acknowledgements
- Abbreviations
- Chapter 1 Data Analysis and Medical Statistics
- Chapter 2 Basic Physics and Electronics
- Chapter 3 Heat, Temperature and Humidity
- Chapter 4 Behaviour of Fluids
- Chapter 5 Gas Measurement and Supply
- Chapter 6 Gas Concentration Measurement
- Chapter 7 Blood Gas Analysis
- Chapter 8 Vapours and Vaporizers
- Chapter 9 Ventilators and Breathing Systems
- Chapter 10 Safety in the Clinical Environment
- Chapter 11 Blood Pressure Measurement
- Chapter 12 Cardiac Output Monitoring
- Chapter 13 Cardiac Support Equipment
- Chapter 14 Ultrasound and Doppler
- Chapter 15 Atomic Structure, Radiation, Imaging and Lasers
- Chapter 16 Electro-biophysiology
- Index
Chapter 8 - Vapours and Vaporizers
Published online by Cambridge University Press: 30 August 2019
- Maths, Physics and Clinical Measurement for Anaesthesia and Intensive Care
- Maths, Physics and Clinical Measurement for Anaesthesia and Intensive Care
- Copyright page
- Dedication
- Contents
- List of contributors
- Preface
- Acknowledgements
- Abbreviations
- Chapter 1 Data Analysis and Medical Statistics
- Chapter 2 Basic Physics and Electronics
- Chapter 3 Heat, Temperature and Humidity
- Chapter 4 Behaviour of Fluids
- Chapter 5 Gas Measurement and Supply
- Chapter 6 Gas Concentration Measurement
- Chapter 7 Blood Gas Analysis
- Chapter 8 Vapours and Vaporizers
- Chapter 9 Ventilators and Breathing Systems
- Chapter 10 Safety in the Clinical Environment
- Chapter 11 Blood Pressure Measurement
- Chapter 12 Cardiac Output Monitoring
- Chapter 13 Cardiac Support Equipment
- Chapter 14 Ultrasound and Doppler
- Chapter 15 Atomic Structure, Radiation, Imaging and Lasers
- Chapter 16 Electro-biophysiology
- Index
Summary
During an anaesthetic, it is uncommon for the pipeline gases to fail. It is, however, vital to be able to maintain safety should this occur.
You are delivering anaesthesia for a surgical procedure of approximately 2 hours’ duration. The patient is stable and the anaesthesia has reached equilibrium, with end-tidal oxygen, nitrous oxide and sevoflurane concentrations of 40%, 58% and 2%, respectively. Unexpectedly, the oxygen supply alarm sounds and you are forced to switch from pipeline gases to bottled gases. This is accomplished without incident and, to preserve your supply for as long as possible, you opt for low-flow anaesthesia.
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- Publisher: Cambridge University PressPrint publication year: 2019